CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

To enhance detection frequency of variations between cylinders.SOLUTION: An internal combustion engine 1 includes: a supercharger 50; port fuel injection valves 4 provided in a plurality of cylinders, respectively and injecting fuel to an intake port 3a; and a variable valve train 13 changing valve overlapping amount of an intake valve 9 and an exhaust valve 10. A control device 100 executes detection processing for detecting variations between the cylinders of fuel injection amount injected from the port fuel injection valves 4 when the internal combustion engine 1 is being operated in an engine load region where it becomes a supercharged state and the valve overlapping amount is a specified value or smaller.SELECTED DRAWING: Figure 1 【課題】気筒間ばらつきの検出頻度を高める。【解決手段】内燃機関１は、過給機５０と、複数の気筒のそれぞれに設けられて吸気ポート３ａに燃料を噴射するポート用燃料噴射弁４と、吸気バルブ９と排気バルブ１０とのバルブオーバーラップ量を変更する可変動弁機構１３とを備えている。制御装置１００は、ポート用燃料噴射弁４から噴射される燃料量の気筒間ばらつきを検出する検出処理を、内燃機関１が過給状態になる機関負荷領域で運転されており、かつバルブオーバーラップ量が既定値以下であるときに実行する。【選択図】図１